Deslagging device and vibrating screening machine

Abstract

The application relates to the technical field of material screening, in particular to a residue discharging device and a vibrating screening machine, which comprises a dust removal fan, a dust filter, a first dust suction pipe and a corrugated connecting pipe group. The corrugated connecting pipe group comprises a main pipe part and a first branch pipe part which are in communication with each other. One end of the first dust suction pipe is in communication with the first sealing cover, and the position where the first dust suction pipe is in communication with the first sealing cover is located above the first vibrating screen. The other end of the first dust suction pipe is fixedly connected with the first branch pipe part. The main pipe part, the dust filter and the dust removal fan are sequentially connected. The application aims to solve at least one technical problem in the background art and provides a residue discharging device and a vibrating screening machine.

Description

Technical Field

[0001] This application relates to the field of material screening technology, and more specifically, to a slag discharge device and a vibrating screen. Background Technology

[0002] In the post-processing of cathode materials, vibrating screens are used to separate powder of the correct particle size from excessively coarse particles (oversize) or clumps (slag). Currently, cleaning the oversize mainly relies on manual, timed shutdowns. Operators need to open the sealing cover of the vibrating screen and use brushes, scrapers, or high-pressure air guns to clean the oversize from the screen surface. This method is labor-intensive, inefficient, and frequent opening of the cover can introduce foreign objects (such as hair or tool wear particles) that contaminate the product, compromise the equipment's airtightness, and increase the risk of material absorbing moisture. Utility Model Content

[0003] The purpose of this application is to provide a slag discharge device and a vibrating screen to address at least one of the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this application adopts the following technical solution: One aspect of this application provides a slag discharge device applied to a vibrating screen. The vibrating screen includes a first sealing cover and a first vibrating screen installed inside the first sealing cover. The slag discharge device includes a dust removal fan, a dust filter, a first suction pipe, and a corrugated connecting pipe assembly. The corrugated connecting pipe assembly includes a main pipe and a first branch pipe that are interconnected. One end of the first suction pipe is connected to the first sealing cover, and the position where the first suction pipe is connected to the first sealing cover is located above the first vibrating screen. The other end of the first suction pipe is fixedly connected to the first branch pipe. The main pipe, the dust filter, and the dust removal fan are connected in sequence.

[0005] Optionally, the slag discharge device provided in this application further includes a first dust suction cover and a first connecting pipe. The first dust suction cover is provided with a first dust suction port and a first connecting port. The first dust suction cover is used to be installed inside the first sealing cover. The first dust suction pipe and the first connecting port are both connected to the first connecting pipe. The first dust suction port is used to face the first vibrating screen.

[0006] The beneficial effect of this technical solution is that it allows the first dust suction port to directly suck up the screen material that is thrown up by the vibration of the first vibrating screen, thereby improving the efficiency of cleaning the first vibrating screen.

[0007] Optionally, a first connecting hole is provided on the first sealing cover, the first connecting pipe passes through the first connecting hole and communicates with the first connecting port, an external thread is provided on the outer wall of the first connecting pipe, an internal thread is provided on the inner wall of the first vacuum pipe, the first connecting pipe and the first vacuum pipe are threadedly connected, and the first vacuum pipe is sealed to the inner edge of the first connecting hole.

[0008] The beneficial effects of this technical solution are as follows: the threaded connection between the first connecting pipe and the first suction pipe improves the connection strength between them, making the connection less likely to fail when the first vibrating screen vibrates. It also ensures a sealed connection between the first suction pipe and the inner edge of the first connecting hole, preventing air from being drawn in between them and thus avoiding wasted suction power from the dust removal fan. This also prevents a reduction in the effective airflow and velocity at the suction port, minimizing the possibility of serious impact on suction performance due to air leakage.

[0009] Optionally, the distance between the first dust suction port and the first vibrating screen is 8-12mm.

[0010] The beneficial effect of this technical solution is that, in this way, an appropriate distance is left between the first dust suction port and the first vibrating screen, which enables the first dust suction port to suck up dust over a large area and to generate a sufficiently large suction force, thereby achieving a better dust suction effect.

[0011] Optionally, the slag discharge device provided in this application further includes a first clamp, the first branch pipe is fitted outside the first suction pipe, the first clamp is fitted outside the first suction pipe, and the first branch pipe and the first suction pipe are fixedly connected by the first clamp.

[0012] The beneficial effects of this technical solution are as follows: In this way, the first clamp can apply greater pressure to the first branch pipe and the first suction pipe when fixing the first branch pipe and the first suction pipe, thereby achieving a sealing effect between the first branch pipe and the first suction pipe. This makes it difficult for air to be sucked in from between the first branch pipe and the first suction pipe, thus avoiding waste of the dust removal fan's suction power. It also prevents the effective air volume and wind speed actually used at the suction port from decreasing, reducing the possibility of serious impact on the dust removal effect due to air leakage.

[0013] Optionally, the vibrating screen further includes a second sealing cover and a second vibrating screen installed inside the second sealing cover. The first sealing cover is located above the second sealing cover, and the first sealing cover and the second sealing cover are connected in the vertical direction. The slag discharge device further includes a second dust suction pipe. The corrugated connecting pipe assembly includes a second branch pipe connected to the main pipe. The first branch pipe and the second branch pipe are connected in parallel. One end of the second dust suction pipe is connected to the second sealing cover, and the position where the second dust suction pipe is connected to the second sealing cover is located above the second vibrating screen. The other end of the second dust suction pipe is fixedly connected to the second branch pipe.

[0014] The beneficial effect of this technical solution is that, when the vibrating screen has two second vibrating screens, the slag discharge device provided in this application can be used to clean the two vibrating screens simultaneously, thereby improving the efficiency of cleaning the vibrating screens.

[0015] Optionally, the slag discharge device provided in this application further includes a second dust suction cover and a second connecting pipe. The second dust suction cover is provided with a second dust suction port and a second connecting port. The second dust suction cover is used to be installed inside the second sealing cover. The second dust suction pipe and the second connecting port are both connected to the second connecting pipe. The second dust suction port is used to face the second vibrating screen.

[0016] The beneficial effect of this technical solution is that it allows the second dust suction port to directly suck up the screen material that is thrown up by the vibration of the second vibrating screen, thereby improving the efficiency of cleaning the second vibrating screen.

[0017] Optionally, a second connecting hole is provided on the second sealing cover, the second connecting pipe passes through the second connecting hole and communicates with the second connecting port, an external thread is provided on the outer wall of the second connecting pipe, an internal thread is provided on the inner wall of the second suction pipe, the second connecting pipe and the second suction pipe are threadedly connected, and the second suction pipe is sealed to the inner edge of the second connecting hole.

[0018] The beneficial effects of this technical solution are as follows: the threaded connection between the second connecting pipe and the second suction pipe improves the connection strength between them, making the connection less prone to failure when the second vibrating screen vibrates. It also ensures a sealed connection between the second suction pipe and the inner edge of the second connecting hole, preventing air from being drawn in between them and thus avoiding wasted suction power from the dust removal fan. This also prevents a reduction in the effective airflow and velocity at the suction port, minimizing the possibility of serious impact on suction performance due to air leakage.

[0019] Optionally, the slag discharge device provided in this application further includes a second clamp, wherein the second branch pipe is fitted outside the second suction pipe, the second clamp is fitted outside the second suction pipe, and the second branch pipe and the second suction pipe are fixedly connected by the second clamp.

[0020] The beneficial effects of this technical solution are as follows: In this way, the second clamp can apply greater pressure to the second branch pipe and the second suction pipe when fixing the second branch pipe and the second suction pipe, thereby achieving a sealing effect between the second branch pipe and the second suction pipe. This makes it difficult for air to be sucked in from between the second branch pipe and the second suction pipe, thus avoiding waste of the dust removal fan's suction power. It also prevents the effective air volume and wind speed actually used at the suction port from decreasing, reducing the possibility of serious impact on the dust removal effect due to air leakage.

[0021] Another aspect of this application provides a vibrating screen, including the slag discharge device provided in this application.

[0022] The technical solution provided in this application can achieve at least one of the following beneficial effects: The slag removal device and vibrating screen provided in this application, when the first vibrating screen needs to be cleaned, turn on the vibrating motor exciter to make the material on the screen be thrown up or tossed up. At this time, turn on the dust removal fan to form a stable negative pressure (vacuum) airflow in the first dust suction pipe and the corrugated connecting pipe assembly. This negative pressure airflow generates a strong "suction" at the port of the first dust suction pipe, so that when the material on the screen generated by the vibration of the first vibrating screen flies upward under its own inertial force and gravity, it will be effectively "captured" and carried away by this suction airflow. The captured material on the screen mixes with the air to form a gas-solid two-phase flow, which is transported to the dust filter for filtration through the corrugated connecting pipe assembly, thereby cleaning the first vibrating screen. In this way, the first vibrating screen can be cleaned without manually opening the sealing cover of the vibrating screen, reducing the risk of introducing foreign objects (such as hair, tool wear particles) into the product, damaging the airtightness of the equipment, and the material absorbing moisture during the cleaning process.

[0023] The additional technical features and advantages of this application will become more apparent from the following description or from practical application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1A partial structural schematic diagram of one embodiment of the vibrating screen provided in this application; Figure 2 A schematic diagram of the left cross-sectional structure of one embodiment of the first and second dust collection covers provided in this application; Figure 3 This is a top view of one embodiment of the first and second dust collection covers provided in this application.

[0026] Figure label: 01. First dust collection cover; 02. First sealing cover; 03. First suction pipe; 04. First connecting pipe; 05. First Branch Management Department; 06. Management Department; 07. First clamp; 08. Second sealing cover; 09. Second suction pipe; 10. Second branch pipe section; 11. Second clamp; 12. Second connecting pipe; 13. Second vibrating screen; 14. Second dust suction port; 15. First vibrating screen; 16. First dust suction port; 17. First connecting port; 18. Second connecting port; 19. Second dust suction cover. Detailed Implementation

[0027] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] like Figures 1 to 3 As shown, one aspect of this application provides a slag discharge device applied to a vibrating screen. The vibrating screen includes a first sealing cover 02 and a first vibrating screen 15 installed inside the first sealing cover 02. The slag discharge device includes a dust removal fan, a dust filter, a first dust suction pipe 03, and a corrugated connecting pipe assembly. The corrugated connecting pipe assembly includes a main pipe 06 and a first branch pipe 05 that are interconnected. One end of the first dust suction pipe 03 is connected to the first sealing cover 02, and the position where the first dust suction pipe 03 is connected to the first sealing cover 02 is located above the first vibrating screen 15. The other end of the first dust suction pipe 03 is fixedly connected to the first branch pipe 05. The main pipe 06, the dust filter, and the dust removal fan are connected in sequence.

[0031] In this embodiment, the dust filter is preferably a pulse-jet bag filter.

[0032] The slag removal device provided in this application, when cleaning the first vibrating screen 15, turns on the vibrating motor exciter, causing the material on the screen to be thrown up. At this time, the dust removal fan is turned on, forming a stable negative pressure (vacuum) airflow in the first dust suction pipe 03 and the corrugated connecting pipe assembly. This negative pressure airflow generates a strong "suction" at the port of the first dust suction pipe 03, so that when the material on the screen generated by the vibration of the first vibrating screen 15 flies upward under its own inertia and gravity, it is effectively "captured" and carried away by this suction airflow. The captured material on the screen mixes with the air to form a gas-solid two-phase mixture. The material is conveyed through the corrugated connecting pipe assembly to the dust filter for filtration, thus cleaning the first vibrating screen 15. In this way, the first vibrating screen 15 can be cleaned without manually opening the sealing cover of the vibrating screen, reducing the risk of introducing foreign objects (such as hair, tool wear particles) into the product, damaging the airtightness of the equipment, and the material absorbing moisture during the cleaning process. The corrugated connecting pipe assembly with a flexible structure ensures that the conveying process remains stable and reliable even when the first vibrating screen 15 is vibrating continuously, and makes the connection points between the corrugated connecting pipe assembly and surrounding components less prone to breakage.

[0033] Optionally, the slag discharge device provided in this application embodiment further includes a first dust suction cover 01 and a first connecting pipe 04. A first dust suction port 16 and a first connecting port 17 are provided on the first dust suction cover 01. The first dust suction cover 01 is disposed inside the first sealing cover 02. The first dust suction pipe 03 and the first connecting port 17 are both connected to the first connecting pipe 04. The first dust suction port 16 is positioned facing the first vibrating screen 15. This allows the first dust suction port 16 to directly suck up the screen material that is thrown up by the vibration of the first vibrating screen 15, improving the efficiency of cleaning the first vibrating screen 15.

[0034] Optionally, a first connecting hole is provided on the first sealing cover 02, and the first connecting pipe 04 passes through the first connecting hole and communicates with the first connecting port 17. An external thread is provided on the outer wall of the first connecting pipe 04, and an internal thread is provided on the inner wall of the first suction pipe 03. The first connecting pipe 04 and the first suction pipe 03 are threadedly connected, and the first suction pipe 03 is sealed to the inner edge of the first connecting hole. The threaded connection between the first connecting pipe 04 and the first suction pipe 03 improves the connection strength, making it less likely for the connection to fail when the first vibrating screen 15 vibrates. The sealed connection between the first suction pipe 03 and the inner edge of the first connecting hole prevents air from being sucked in between, thus avoiding wasted suction power from the dust removal fan. This also prevents a decrease in the effective airflow and velocity actually used at the first suction port 16, reducing the possibility of serious impact on the dust collection effect due to air leakage.

[0035] Optionally, the distance between the first dust suction port 16 and the first vibrating screen 15 is 8-12 mm. This appropriate distance allows the first dust suction port 16 to draw in dust over a larger area while also generating sufficient suction force, resulting in better dust collection. Preferably, the distance between the first dust suction port 16 and the first vibrating screen 15 is 10 mm.

[0036] Optionally, the slag discharge device provided in this embodiment further includes a first clamp 07. The first branch pipe 05 is fitted outside the first suction pipe 03, and the first clamp 07 is fitted outside the first suction pipe 03. The first branch pipe 05 and the first suction pipe 03 are fixedly connected by the first clamp 07. In this way, the first clamp 07 can apply greater pressure to the first branch pipe 05 and the first suction pipe 03 when fixing them, thereby achieving a sealing effect between the first branch pipe 05 and the first suction pipe 03. This prevents air from being sucked in between the first branch pipe 05 and the first suction pipe 03, thus avoiding waste of the dust removal fan's suction power. It also prevents the effective air volume and wind speed actually used for the second suction port from decreasing, reducing the possibility of serious impact on the dust removal effect due to air leakage.

[0037] Optionally, the vibrating screen further includes a second sealing cover 08 and a second vibrating screen 13 installed inside the second sealing cover 08. The first sealing cover 02 is located above the second sealing cover 08, and the first sealing cover 02 and the second sealing cover 08 are vertically connected. The slag discharge device further includes a second dust suction pipe 09. The corrugated connecting pipe assembly includes a second branch pipe 10 connected to the main pipe 06. The first branch pipe 05 and the second branch pipe 10 are connected in parallel. One end of the second dust suction pipe 09 is connected to the second sealing cover 08, and the position where the second dust suction pipe 09 connects to the second sealing cover 08 is located above the second vibrating screen 13. The other end of the second dust suction pipe 09 is fixedly connected to the second branch pipe 10. In this way, when the vibrating screen has two second vibrating screens 13, the slag discharge device provided in this application can be used to clean the two vibrating screens simultaneously, thereby improving the efficiency of cleaning the vibrating screens. Of course, when the vibrating screen includes more sealing covers and a corresponding number of second vibrating screens 13, the corrugated connecting pipe assembly may include a corresponding number of branch pipes connected to the main pipe 06, and a corresponding number of second dust suction pipes 09, thereby enabling the cleaning of all vibrating screens in the vibrating screen.

[0038] Optionally, the slag discharge device provided in this application embodiment further includes a second dust suction cover 19 and a second connecting pipe 12. A second dust suction port 14 and a second connecting port 18 are provided on the second dust suction cover 19. The second dust suction cover 19 is disposed inside the second sealing cover 08. The second dust suction pipe 09 and the second connecting port 18 are both connected to the second connecting pipe 12. The second dust suction port 14 is positioned facing the second vibrating screen 13. This allows the second dust suction port 14 to directly suck up the screen material that is thrown up by the vibration of the second vibrating screen 13, improving the efficiency of cleaning the second vibrating screen 13.

[0039] Optionally, a second connecting hole is provided on the second sealing cover 08, and the second connecting pipe 12 passes through the second connecting hole and communicates with the second connecting port 18. An external thread is provided on the outer wall of the second connecting pipe 12, and an internal thread is provided on the inner wall of the second suction pipe 09. The second connecting pipe 12 and the second suction pipe 09 are threadedly connected, and the second suction pipe 09 is sealed to the inner edge of the second connecting hole. The threaded connection between the second connecting pipe 12 and the second suction pipe 09 improves the connection strength, making it less likely to fail when the second vibrating screen 13 vibrates. The sealed connection between the second suction pipe 09 and the inner edge of the second connecting hole prevents air from being sucked in between, thus avoiding wasted suction power from the dust collector fan and reducing the effective airflow and velocity at the suction port, thereby minimizing the possibility of serious impact on the dust collection effect due to air leakage. Figure 2 As shown, both the first connecting port 17 and the second connecting port 18 can be square openings.

[0040] Optionally, the distance between the second dust suction port 14 and the second vibrating screen 13 is 8-12 mm. This appropriate distance allows the second dust suction port 14 to draw in dust over a larger area while also generating sufficient suction force, resulting in better dust collection. Preferably, the distance between the second dust suction port 14 and the second vibrating screen 13 is 10 mm.

[0041] Optionally, the slag discharge device provided in this embodiment further includes a second clamp 11. The second branch pipe 10 is fitted outside the second suction pipe 09, and the second clamp 11 is fitted outside the second suction pipe 09. The second branch pipe 10 and the second suction pipe 09 are fixedly connected by the second clamp 11. In this way, the second clamp 11 can apply greater pressure to the second branch pipe 10 and the second suction pipe 09 when fixing them, thereby achieving a sealing effect between the second branch pipe 10 and the second suction pipe 09. This prevents air from being sucked in between the second branch pipe 10 and the second suction pipe 09, thus avoiding wasting the suction power of the dust removal fan and preventing a decrease in the effective air volume and velocity actually used at the suction port. This reduces the possibility of serious impact on the dust collection effect due to air leakage.

[0042] In this embodiment, preferably, the slag discharge device further includes a dust collection bin. The dust collection bin is used to collect the dust filtered at the dust filter. At the dust collection bin, the dust is intercepted by the dust filter and falls into the dust collection bin below for centralized treatment. Clean air is discharged through the dust removal fan. Throughout the process, the sealing of each connection point is ensured by installing clamps to prevent air from being sucked in from these interfaces, thus avoiding wasting the fan's suction power and preventing a reduction in the effective airflow and velocity actually used at the dust suction port, which would seriously affect the dust collection effect.

[0043] Another aspect of this application provides a vibrating screen including the slag discharge device provided in this application.

[0044] The slag removal device provided in this application, when cleaning the first vibrating screen 15, turns on the vibrating motor exciter, causing the material on the screen to be thrown up. At this time, the dust removal fan is turned on, forming a stable negative pressure (vacuum) airflow in the first dust suction pipe 03 and the corrugated connecting pipe assembly. This negative pressure airflow generates a strong "suction" at the port of the first dust suction pipe 03, so that when the material on the screen generated by the vibration of the first vibrating screen 15 flies upward under its own inertia and gravity, it is effectively "captured" and carried away by this suction airflow. The captured material on the screen mixes with the air to form a gas-solid two-phase mixture. The material is conveyed through the corrugated connecting pipe assembly to the dust filter for filtration, thus cleaning the first vibrating screen 15. In this way, the first vibrating screen 15 can be cleaned without manually opening the sealing cover of the vibrating screen, reducing the risk of introducing foreign objects (such as hair, tool wear particles) into the product, damaging the airtightness of the equipment, and the material absorbing moisture during the cleaning process. The corrugated connecting pipe assembly with a flexible structure ensures that the conveying process remains stable and reliable even when the first vibrating screen 15 is vibrating continuously, and makes the connection points between the corrugated connecting pipe assembly and surrounding components less prone to breakage.

[0045] The slag removal device and vibrating screen provided in this application effectively prevent cross-contamination of materials from different batches through dust, maintain high product consistency, significantly reduce dust concentration in the workshop air, protect employee health, and avoid occupational diseases (such as pneumoconiosis). Since high-nickel fine powder has a flammable and explosive hazard at certain concentrations, the operation of this device ensures safe production and prevents the risk of dust explosions. It also allows for the recovery and reuse of escaping expensive cathode material dust, improving yield and reducing costs.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A slag discharge device, characterized in that, The invention is applied to a vibrating screen, which includes a first sealing cover and a first vibrating screen installed inside the first sealing cover. The slag discharge device includes a dust removal fan, a dust filter, a first suction pipe, and a corrugated connecting pipe assembly. The corrugated connecting pipe assembly includes a main pipe and a first branch pipe that are interconnected. One end of the first suction pipe is connected to the first sealing cover, and the position where the first suction pipe is connected to the first sealing cover is located above the first vibrating screen. The other end of the first suction pipe is fixedly connected to the first branch pipe. The main pipe, the dust filter, and the dust removal fan are connected in sequence.

2. The slag discharge device according to claim 1, characterized in that, It also includes a first dust suction cover and a first connecting pipe. The first dust suction cover is provided with a first dust suction port and a first connecting port. The first dust suction cover is used to be installed inside the first sealing cover. The first dust suction pipe and the first connecting port are both connected to the first connecting pipe. The first dust suction port is used to face the first vibrating screen.

3. The slag discharge device according to claim 2, characterized in that, A first connecting hole is provided on the first sealing cover, the first connecting pipe passes through the first connecting hole and communicates with the first connecting port, an external thread is provided on the outer wall of the first connecting pipe, an internal thread is provided on the inner wall of the first vacuum tube, the first connecting pipe and the first vacuum tube are threadedly connected, and the first vacuum tube is sealed to the inner edge of the first connecting hole.

4. The slag discharge device according to claim 2, characterized in that, The distance between the first dust suction port and the first vibrating screen is 8-12mm.

5. The slag discharge device according to claim 1, characterized in that, It also includes a first clamp, the first branch pipe is fitted outside the first suction pipe, the first clamp is fitted outside the first suction pipe, and the first branch pipe and the first suction pipe are fixedly connected by the first clamp.

6. The slag discharge device according to any one of claims 1 to 5, characterized in that, The vibrating screen further includes a second sealing cover and a second vibrating screen installed inside the second sealing cover. The first sealing cover is located above the second sealing cover, and the first sealing cover and the second sealing cover are connected in the vertical direction. The slag discharge device further includes a second dust suction pipe. The corrugated connecting pipe assembly includes a second branch pipe connected to the main pipe. The first branch pipe and the second branch pipe are connected in parallel. One end of the second dust suction pipe is connected to the second sealing cover, and the position where the second dust suction pipe is connected to the second sealing cover is located above the second vibrating screen. The other end of the second dust suction pipe is fixedly connected to the second branch pipe.

7. The slag discharge device according to claim 6, characterized in that, It also includes a second dust suction cover and a second connecting pipe. The second dust suction cover is provided with a second dust suction port and a second connecting port. The second dust suction cover is used to be installed inside the second sealing cover. The second dust suction pipe and the second connecting port are both connected to the second connecting pipe. The second dust suction port is used to face the second vibrating screen.

8. The slag discharge device according to claim 7, characterized in that, A second connecting hole is provided on the second sealing cover. The second connecting pipe passes through the second connecting hole and communicates with the second connecting port. An external thread is provided on the outer wall of the second connecting pipe, and an internal thread is provided on the inner wall of the second suction pipe. The second connecting pipe and the second suction pipe are threadedly connected, and the second suction pipe is sealed to the inner edge of the second connecting hole.

9. The slag discharge device according to claim 6, characterized in that, It also includes a second clamp, the second branch pipe is fitted outside the second suction pipe, the second clamp is fitted outside the second suction pipe, and the second branch pipe and the second suction pipe are fixedly connected by the second clamp.

10. A vibrating screen, characterized in that, Includes the slag discharge device as described in any one of claims 1 to 9.

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